Eco-Tec Limited
Patent Owner
Stats
- 14 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 16, 2006 most recent publication
Details
- 14 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 467 Total Citation Count
- Sep 13, 1977 Earliest Filing
- 10 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
7045067 Method and apparatus for increasing filter contaminant loading capacityAug 05, 04May 16, 06[B01D]
5942084 Process for the separation of sulphides from pulping liquors using amphoteric resinsJan 24, 97Aug 24, 99[D21C]
5922171 Method and apparatus for removing sodium chloride from pulping chemicals using an amphoteric ion-exchange resinJan 24, 97Jul 13, 99[D21C]
5792441 Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds streamOct 11, 96Aug 11, 98[C01B, C01D]
5730784 Process for the removal of hydrogen sulfide from a gas streamJun 05, 95Mar 24, 98[C01B, B01D]
5527475 Method for determining the parameters of a gas-liquid contact apparatusJun 05, 95Jun 18, 96[B03D, B01D]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5547579 Process and apparatus for purification of contaminated acidsExpiredJan 20, 95Aug 20, 96[B01D]
5091046 Caustic etching of aluminum with matte finish and low waste capabilityExpiredDec 31, 90Feb 25, 92[C23F, B44C]
4666683 Process for removal of copper from solutions of chelating agent and copperExpiredNov 21, 85May 19, 87[C01G]
4186174 Process and apparatus for obtaining a more concentrated solution of a component using ion exchange bedsExpiredSep 13, 77Jan 29, 80[C01G]
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